The 4th Delimitation Commission in India followed specific guidelines and methodology when redrawing parliamentary and assembly constituencies in 2002. The commission (1) kept the total number of existing seats for each state and assembly unchanged until the 2026 census, (2) reworked the number of reserved seats for Scheduled Castes and Scheduled Tribes based on the 2001 census, and (3) froze the extent of newly delimited constituencies until 2026 to provide demographic stability. The commission divided the 2001 census population by the number of assembly constituencies in each state to determine the average population per constituency. District populations were then divided to allot the number of constituencies, while maintaining the average and allowing for up to 10% deviation between constituencies.